CPL Aerodynamics 3

Question 1

What is the primary aerodynamic effect of fowler flaps compared to plain flaps?

Accepted Answer

They increase wing area and camber simultaneously

Answer

They only increase drag without changing lift

Answer

They reduce stall speed more than any other device

Answer

They decrease the critical angle of attack

Question 2

During a coordinated level turn at 60 degrees of bank, the load factor is approximately:

Accepted Answer

2.0 G

Answer

1.4 G

Answer

2.4 G

Answer

3.0 G

Question 3

What aerodynamic phenomenon causes 'Mach tuck' in transonic flight?

Accepted Answer

Aft movement of the center of pressure as shockwaves develop

Answer

Loss of elevator effectiveness due to shock wave formation

Answer

Increase in induced drag at high altitude

Answer

Compressor stall in jet engines

Question 4

Which type of drag is NOT a component of parasite drag?

Accepted Answer

Induced drag

Answer

Form drag

Answer

Skin friction drag

Answer

Interference drag

Question 5

How does a symmetrical airfoil behave at zero angle of attack?

Accepted Answer

It produces zero lift

Answer

It produces maximum lift

Answer

It produces negative lift

Answer

It produces lift equal to a cambered airfoil

Question 6

What is 'washout' in wing design, and why is it used?

Accepted Answer

Twist reducing angle of attack toward the wingtip to delay tip stall

Answer

Wing sweep angle that reduces transonic drag

Answer

Increased camber at the root for extra lift

Answer

Downward deflection of ailerons during cruise

Question 7

An aircraft in a 45-degree banked level turn must increase lift by approximately what factor to maintain altitude?

Accepted Answer

1.4

Answer

1.2

Answer

1.7

Answer

2.0